In article ,
Bryan Martin wrote:
Ok need to run electrical wiring underground to 2 outbuildings located on
different sides of my lot.

Building A
Needs 4 wall outlets, 2 light fixtures and a light switch. Everything
should be 110V in this building
Just mainly need power for lights but may use other devices once in a while.

Building B
Needs 5 wall outlets, 2 light fixtures and a light switch. Needs 1 outlet
220V for air compressor.
Needs the 220 for a air compressor, will run power tools (skill saw, misc
drills etc....)

Unlike some of the others, I would suggest what may look like overkill,
but could save some rewireing later if your needs change.

For each building run 220 with 4 conductors, hot, hot, neutral & ground.
I would suggest 30 amp with #10 or #8 wires. Put a subpanel in each
building, and pull what you need from the subpanel. Make the subpanel
breakers 15 amp and use #14 or #12 wire.

Bldg A, split the outlets between the 2 halfs of the 220. If the 2
lights will have one switch, either don't split them or use 2 switches
next to each other and split the lights. I am not sure, but I think you
can get a DPST switch to control 2 light circuts with a single switch.

Bldg B similarly and add the 220 circut with appropriate breakers and
wire sizes.

This way, if you have a short on a 120 circut, you still have half your
lights & outlets.

--
Rich Greenberg Marietta, GA, USA richgr atsign panix.com + 1 770 321 6507
Eastern time. N6LRT I speak for myself & my dogs only. VM'er since CP-67
Canines:Val, Red & Shasta (RIP),Red, husky Owner:Chinook-L
Atlanta Siberian Husky Rescue. www.panix.com/~richgr/ Asst Owner:Sibernet-L